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YPC-FParaFlow Two-StageGeneralThe YORK ParaFlow Direct Fired Absorption Chiller-Heater isAbsorption Direct Fired
completely factory-packaged, including a first stage (high
Liquid Chiller/Heater
temperature) generator, burner, burner panel, main shell, hot waterheater, microprocessor controls and all interconnecting unit piping
COOLING CAPACITY
and wiring. All control and safety devices are mounted and wired. The
703 to 2373 kW
lithium bromide charge is shipped loose.Vessels and components are, as necessary, manufactured and
HEATING CAPACITY563 to 1969 kWRefrigerant cycleThe YORK YPC high efficiency two-stage absorption refrigerationcycle uses water as the refrigerant and lithium bromide as theabsorbent. It is the strong affinity that these two substances have foreach other that makes the cycle work. The entire process occurs inhermetic vessels in a near complete vacuum.YORK’s exclusive two-way split of solution flow allows the unit tooperate at much lower solution concentrations and temperatures thanin series flow systems. This dramatically increases the efficiency ofthe unit and virtually eliminates crystallisation problems. TheParaFlow two stage design guarantees a market leading COP up to1,11 in cooling mode.Environmental ConsiderationsTraditional electrically driven chillers generally use halogenatedrefrigerants, which can cause ozone depletion and have a high global
warming potential. The YPC-F range uses the most environmentally
safe refrigerant - WATER. The absorbent is lithium bromide. That
water/lithium bromide solution has no global warming effect. It is non-
caustic, non-toxic and non-flammable.
By using the environmental friendly ADVAGuard 750 inhibitor the
internal corrosion rate and hydrogen generation is up to 8 times less
are performed through the evaporator asstandard. Optionally an additional hot
YPC-F units can be operated by either natural gas, propane gas or
79,4°C can be installed. With that option
fuel oil. Capacity control is accomplished by modulating the burner’s
ISN Millenium Control CenterThe Millennium™ control panel combines the very best in chillerprotection with the optimum in system efficiency. As standardequipment on all chillers it is a major development in absorptionchiller technology, providing the most precise and reliable control andsafety.Vital chiller operating information is shown on the 40 characteralphanumeric display. All information is in clear language withnumeric data provided in metric or imperial units.The control panel automatic capacity control varies the burner’s firingrate using a fuzzy-logic control algorithm to maintain the programmedsetpoint for the chilled water leaving temperature in the load rangebetween 30% and 100%.Stainless Steel spray headsYORK’s advanced spray head design provides an extremely uniformand soft mist that eliminates hot and cold spots in the absorber andevaporator tubes, resulting in longer tube life and increased efficiency.Unique Automatic Purge SystemWhen accumulated non-condensable gases reach a preset level asensor automatically activates the purge system, with a motor-drivenpurge pump. This negates the need for time consuming periodicpurging of the unit by the operator.Hermetic PumpsThe unique construction of YORK's hermetic pumps ensures lowenergy consumption and long trouble-free operation. Serviceinspections are usually carried out every 50,000 hours. Maintenanceof the pumps can be carried out quickly and easily due to built-inisolation valves ahead and behind each internal pump.OperationNo special operator qualifications are required to operate the unit.The unit operates in vacuum conditions and is not subject to boiler regulations.Cooling Capacities and Physical DataDimensionsOperatingCapacity1Capacity1Weight kgNotes1 Values are valid at following conditionsChilled Water Temperatures (in/out) 12.2/6.7°CCooling Water Temperatures (in/out) 29.4/35°C
Hot Water Temperatures (in/out) for standard unit 55.5/60°CHot Water Temperatures (in/out) for optional hot water heat exchanger 68.3/79.4°C
2 standard width without optional hot water heat exchanger
3 width with optional hot water heatexchanger
4 add 450kg for optional hot water heat exchanger
YPC-F